Riveting machine



C. E. MARTIN RIVETING MACHINE April 13 1926;'.

April 13, 192s. 1,580,213

l C. E. MARTIN RIVETING MACHINE Filed May 14, 1925 2 Sheets-shunt 2 @Hm nega Patentest Apr. 13, 1926.

CECIL E. MARTIN, or WABASILINDIANA.

' RIVEIING MACHINE.

Application filed Mayr 14, 1925.rk Serial No. 30,311.

To .all whom t may cof/cern lie it known th-at I, GnoIL E. MARTIN, a

citizen of the United States, residing at lla-v bash, in the county of Wabash and State of Indiana, have invented certain new'and use-.

ful improvements 1n a Riveting Machine; and I do hereby declare the following vto be a full, clear, and exact description ofthe 1nvention, such as will enable others skilled in theV art to which it appertains to make and use the saine.

This invention relates to improvements in riveting machines, particularly in an improved means for holding lthe rivets invplace and swinging the rivet carrier aside after the rivet has come in contact with the work.

A further object of this invention is lto provide a device for forcing the carrier into operative position for receiving rivets. l

@ther ob] eets of this linvention will appear fromthe followingdescription and claims.

in the drawings, v

Fig. 1 illustrates a vertical side elevation view of the riveting machine in assembled` form with a section of the tubular supportf ing rod broken awayshowing the foot vlever which is connected to the operating arm of the plunger.

Fig. 2 represents a vertical front elevation view of a portion of Figjl. Y

Fig. 3 illustrates a cross section of the rivet feeding tube taken at 3-3 of Fig. 1.

Fig. 4 represents a vertical side elevation view on enlarged scale of the feeding, carrying and releasing mechanism for theriveting machine, in raised position. Y

Fig. 5 illustrates a vertical side elevation view of Fig. 4 in lowered position.v

Fig. 6 shows a vertical kfront elevation view of the plunger, carrying, and releasing mechanism in raised position, with the spacing washers holding thecotter pin in section.

Fig. 7 illustrates a cross sectional view of Fig. 6 taken at 7-7.

This invention is particularly adapted to be used in connection with any rivet-ing machine of a suitable type, for instance, in a machine having a foot press 1, a return tension spring 2 attached thereto, anda rod 3 extending upward through a tubular support 4, to a cross arm 5 adapted to operate av plunger 6, having a tension spring return 7. The kplunger 6 being guided in slidable relation in a head portion 8 of the main body section 9, having a table or work supporting portion 10.- Attached to the main body portion ofthe machine is a rivet feeding tubev 11 of a'suitable design, which A.supplies a steady stream of rivets 12 to the rivet carrier' 13, havingI a ,receiving slot.A 14 therein.

The carrier 13 is rotatably mounted'in the plunger 6, through an enlarged opening 15, on a cotter pin 16, one end of the cotter pin 16 being` adapted to receive one end of a tension spring 17, the other end of spring 17 being attached to a cotter pin extending through a limiting collar 19 and plunger shaft 6. The enlarged opening 15 will enable the tension spring 17 to bring the carrie'r 13 firmly against the rivet 12 at the bottom end of the plunger 6. The other end of thecotter pin 16 is adapted to receive in ady dition-to the Carrier, 13, suitable spacing.

washers 20 and 2lY and a tension spring 22, the tension spring 22 having anv arm 23 eX- 'tending to a lock 24 integrally a partiof a latch 25. y The spring 22 will function and hold the deg or latch 25 in locked relation withthe plunger 6 at the point 26, thereby, at t-he same time holding the carrier with the rivet 12 at the lowered position clearly disclosed in Figure 46. The dog or latch 25,

-ispivotally connected at the point 27 to the carrier 13. An arm 28 integrally connected with'thecarrier 13, is adapted to receive at its end 29 one end' of a tension spring 30. The other end of vspring 30 being attached at a point 31 of an extension arm 32. The eX- tension arm 32 extending downward a suitable distance in order to contact with the arm 28, thereby forcing carrier 13 into operative posit-ion for receiving a rivet 12, from I' the feed tube 11 when the 'plunger is in raised position. The extension arinl 32 is portion 8 of the main body section 9. AA

specially designed triprelease 34 is pivot? ally mounted at 35 on carrier 13, one end of the release trip 34 being adapted to slidably Acontact at 36 with the work on the table porfurther pivotally mounted at 33 to the .head Y the work 10 at 36, the latch 25 will be rey Vleased from locked relationship and carrier 13 will swing upward from the power exerted by the tension spring 30, and the eXtension arm 32 coming 1n contact with arm 28 of the carrier will tend to force the carrier`r into operative position for receiving another rivet from the `feeding tube ll as clearly disclosed in Figure Ll.

ln operation with an ordinary riveting machine of the type described herein, it is merely necessary to press downward on the foot lever l which will bring plunger 6 downward with a rivet hanging lirn'ily in place in the carrier at the lower end or' the plunger, the tension spring l?, acting to nold the iivet liiiiily iii position. lne cai.- rier being released by a trip lever pivoted on the carrier. as the release trip comes in Contact with the work on the table oit' the machine, the carrier will be allowed to swing upwardly out of the way while the rivet continues on downward and is spread, making an etlicient riveting` operation.

lllhat l claim is:

l. rl`lie combination with a riveting niachineha-ving a table portion, a plunger, and a head tor the plunger, ot a rivet carrier pivotally mounted on the plunger, and means for holding the rivet carrier in tixed relation to the plunger comprising a latch pivotally mounted on the cariier.

2. The combination with a riveting ina- 4chine having a. table portion, a plunger, and

a head `for the plunger, of a rivet carrier pivotally mounted ou the plunger, means for holding` therivet carrier in tired relation to the, plunger comprising a latch pivotally mounted on the carrier, and means for releasing the latch.

3. rlllie combination with a riveting machine having a table portion, a plunger, and a head tor the plunger, ot a rivet carrier pivotally -mounted on the plunger, means for holding the rivet carrier in lined relation to the plunger comprising a latch pivotally mounted on the carrier, and means loil releasiiigrthe latch consisting of a trip release lever.

4l.. rlhe combination with a riveting inachine having a table portion, a plunger, and a head :tor the plunger, ot a rivet carrie-i' pivotally mounted on the plunger, means -for holding the rivet carrier in lixed relation to the plunger comprising a latch pivotally mounted on the carrier, and means :tor releasing the latch consisting of a trip release lever pivotally mounted on the carrier, one end of the trip lever being connected to the latch and the other end adapted to contact with the table portion, to thereby release the latch from locked relationship with the plunger.

The combination with a riveting machine having a table portion, a plunger, and a head for the plunger, ot' a rivet carrier pivotally mounted on the plunger, and means for raising the carrier on the pivot for adjusting its position.

(5. The combination with a riveting niachine liaving a table portion, a plunger, and a head for the plunger', et a rivet carrier pivotally mounted on the plunger, and means for raising the carrier. on the pivot for adjusting its position comprising a ten-4 sion spring and a lever arm.

7. The combination with a riveting machine having a table portion, a plunger, and a head for the plunger, ot' a rivet carrier pivotally mounted on the plunger, and means for raising the carrier on the pivot lor adjusting its position comprising a tension spring and a lever arm, the tension spring being attached at one end to the lever and at the other end to an extension of the carrier, and the levenl being designed tio swing from the-head and adapted to adjust the carrier into position.

8. The combinationfwith a riveting inacliine having a table portion, a plunger having an enlarged opening therein, and a head i'or the plui'iger, of a rivet carrier pivotally mounted on the l'ilunger, the pivot :tor the carrier being` received in the enlarged open-- ing i the plunger, and means for tightening the rivet carrier against the rivets comprising` a tension spring adapted to move the rivet carrier relative to the plunger, said iiiovenient being permitted by the enlarged opening through which the pivotlor the rivet carrier is extended.

ln testimony whereof I atlix my signature.

CECIL E, MARTIN, 

